对于今天的商业而言，目标系统上一直可使用的数据资源是很宝贵的,并且它们无须加以规范或纠正错误就能够加载。
It is rare in businesses today that data is always available on the destination system, and does not need to be standardized or corrected for errors before loading.
他是一个优秀的系统管理员，能够控制和运行流畅和稳定的系统，但他并不擅长纠正拼写错误。
Ted is a good system administrator who can control and run a smooth and stable system, but he is not good at correcting typo errors.
对资产蓄意的错误评估的纠正在很大程度上非常困难，尤其是当会计和风险管理系统都是基于相同数据。
The deliberate mismarking of assets is difficult to pull off on a large scale, he says, not least because accounting and risk-management systems sit on the same database.
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